The main commodity in the Cosmic Era is data and communication, in the form of social media, entertainment, advertising, and other electronic sources of information. The spread of this data is measured in a unit known as a meme (also spelled meem)

A portmanteau of Kaku and engram. Dr. Kaku of the middle Petrol era posited the quantification of human emotion, while an engram is a cybertechnological recording of a human mind, a snapshot of a mental or emotional state.